DE1242711B - Circuit arrangement for the free dialing of registers in telecommunication, in particular telephone systems - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

H04q

German class: 21 a3 - 32/01

Number: 1242711

File number: St 22458 VIII a / 21 a3

Filing date: July 25, 1964

Open date: June 22, 1967

The main patent application relates to a circuit arrangement for activating registers in Telecommunication systems, in particular telephone systems, in which the registers are sent to the the connection sets assigned to the connections can be switched on and the connection sets switch means for the direct transmission of the recorded voting impulses. This direct transfer takes place with the activation of the register when the register is required for the construction of the assigned Connection section has included the required digits and has controlled the setting in the register itself no more digits are stored and in a default time for the connection no further election impulses are received after the election. Such a circuit arrangement has the advantage over the known arrangements for register activation, that the register is activated at the earliest possible point in time and for a new connection can be provided. The number of registers can therefore be reduced significantly.

However, such a circuit arrangement then encounters difficulties when connected to a telephone system Number switch and push-button dialing subscriber stations are switched on and both have access to the same Have registers.

In such a system, the type of register activation described in the main patent cannot be used. Further difficulties for register shutdown occur when outgoing connection lines that work with audio-frequency signaling.

It is the object of the invention to provide the circuit arrangement for activating registers in telecommunications, in particular to improve telephone systems so that with different dialing methods The most favorable activation time is always achieved on incoming and outgoing lines and that Register only remains occupied for further signaling in those cases in which facilities are required that are not included in the connection sets for reasons of increased effort can. The circuit arrangement according to the invention is characterized in that the register is switching means contains, which distinguishes between incoming number switch dialing pulses and touch dialing code characters make and the early activation of incoming touch-key code characters and / or tone-frequency character transmission of the register and the forwarding of the dialing information in the connection record regardless of the

Circuit arrangement for the activation of
Registers in telecommunications, in particular
Telephone systems

Addition to registration: St 21140 VIII a / 21 a3
Interpretation document 1 222 548

Applicant:

Standard Elektrik Lorenz Aktiengesellschaft,
Stuttgart-Zuffenhausen, Hellmuth-Hirth-Str. 42

Named as inventor:

Walter Hackenberg, Hirschlanden (Württemberg);

Herbert Siegel, Münchingen (Württ.)

prevent subsequent connection establishment in your own system.

With such an arrangement for the activation of registers it is ensured that with pulse dialing the advantages of the arrangement can be exploited according to the main patent application and that with coded Election in any case, the registers will take over the forwarding of the election information. Since the audio frequency controlled systems are usually equipped with dialing or end-of-dialing characters, see the training the circuit arrangement according to the invention that the shutdown of the register of is initiated by a dialing or end-of-dialing character recorded by the register itself.

To differentiate the incoming dialing information into pulse or touch dialing are in the register Audio frequency receivers are provided, which also serve to evaluate the code characters.

Regardless of the type of incoming dialing information, the register must be activated

709 607/98

can also be made dependent on the signaling for the further connection establishment is required. An indicator that is activated when an audio-frequency signaling system is activated Line is obtained through the control device, prevents the register from being released prematurely and ensures that incoming dialing impulses are also transmitted through the register with the help of the dialing devices be forwarded at a tone frequency. The code of the signer can be used at any time can be changed if the code of the incoming touch-dial code characters does not match the Character code of the outgoing line matches. This implementation does not matter, there it also takes place in the registers.

The invention is based on the extended circuit arrangement according to the main patent application explained.

The incoming dialing information is transmitted via the / wires of the register switching network RgKF from connection set A-VS to the registering. If it is a question of dialing pulses, then the dialing relay A in the connection set forwards these pulses directly to the dialing WA of the register. If enough dialing information has been recorded by the register, the connection is established via the following connection section. The switch-off of the register is initiated in the register Rg after a specified time ζ via the switching means we. The switching means D in the register responds and the switching means Ah is switched on via the switching means D 1 in the connection set A-VS , which then transmits the impulses which then arrive directly to the continuing line.

The register is switched off immediately and is already available for a new connection.

However, if tone-frequency touch-tone code characters arrive via the connection set A-VS, then these are z. B. supplied to the audio frequency receiver TonE located in the register via a separate winding of the isolating transformer OLÜ and the / wires of the register switching network RgKF. A switching means TE is controlled by this receiver when it is addressed for the first time and is kept in its own hold circuit. The audio frequency receiver feeds the dial recording device WA in a known manner. The connection via the central control device is established in a known manner. If the connection has been set up in one's own office, then the switching means we initiate the shutdown of the register. Since the response circuit of the cut-off relay D is interrupted via the contact te , the register will remain switched on in this case until a final dialing signal sent by the participant or a final dialing signal sent by the target arrives. Since this signaling is a quick voting process, this additional signal does not entail any significant loss of time. In this case, the prevention of register deactivation is independent of the type of dialing information to be forwarded. The register must remain switched on for both outgoing pulse dialing and coded tone-frequency dialing, since only the tone frequency receivers required for evaluating the incoming touch-tone code characters are contained in the register.

Another possibility of operation makes it necessary that the register Rg may not be switched off after the connection has been established in one's own office.

If dialing impulses arrive via the connection set A-VS , the connection to a continuing line is established after the sufficient information has been received from the central control device.

A transmission is assigned to this line, which can indicate the tone-frequency signaling to the following office. When such a connection is set up, an identifier s can be derived in a known manner, which is fed to the register Rg and there prevents the register from being switched off. The registering contains the audio-frequency transmission devices TonS , which are required for forwarding audio-frequency characters. A contact in the response circuit of the cut-off relay D prevents the register from being switched off, and a further contact s switches the audio-frequency transmission devices TonS to the outgoing connection line a, b.

In this way it is ensured that the conversion of the selection information in the register Rg also takes place in this operating case. The audio frequency devices required for this can therefore also be accommodated in the register.

Claims (5)

Patent claims: 1.Circuit arrangement for activating registers in telecommunications, in particular telephone systems, in which the registers can be connected to the connection sets assigned to the connections when the connection is established and the connection sets contain switching means for direct forwarding of the dialing pulses recorded, this direct forwarding taking place when the register is activated when the register has recorded the digits required to set up the assigned connection section and has controlled the setting, no further digits are stored in the register and no further dialing pulses are received within a specified time for the connection of the subsequent dialing, according to patent application St 21140 VIII a / 21 a ^s , characterized in that the register (Rg) contains switching means (TonE, TE, S) which make a distinction between incoming number switch dialing pulses and touch-dial code characters and the un d / or audio-frequency signal transmission prevent the premature activation of the register (Rg) and the forwarding of the dialing information in the connection set (A-VS) regardless of the connection establishment in your own system. 2. Circuit arrangement according to claim 1, characterized in that the shutdown of the register is initiated by a dialing or dialing end character recorded by the register (Rg) itself. 3. A circuit arrangement according to claim 1, characterized in that the register (Rg) contains audio frequency receivers (TonE), via which the arrival of touch dial code characters can be recognized. 4. Circuit arrangement according to claim 1, characterized in that when a connection is set to a line operated with audio-frequency signaling, a code (s) can be derived from this, which prevents the triggering of the register (Rg) and the forwarding (TonS) of the dialing information initiated in the register. 5. Circuit arrangement according to claim 4, characterized in that the forwarding of the Dialing information takes place in the same or changed code. 1 sheet of drawings 709 607/98 6.67 ® Bundesdruckerei Berlin